Is CVE-2020-10566 in the CISA KEV catalog?

No. CVE-2020-10566 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-10566?

CVE-2020-10566 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2020-10566?

CVE-2020-10566 has an EPSS score of 0.34% (26th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-10566?

Upgrade freebsd to 525916_2020-02-12 or later.

CVE & CISA-KEV Catalog

CVE-2020-10566

HIGH

7.8

CVSS v3

NVD

Description

grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buffer overflow.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

freebsdNVD

Affected:< 525916_2020-02-12Fixed in:525916_2020-02-12CVE-2020-10566derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.34%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Vendor Advisory1

svnweb.freebsd.org

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.